For sale is a new/unused Omega 21mm Black “Coated Nylon” Nato strap. It’s the "black coated nylon" strap with leather backing, nylon keepers and polished buckle. Omega reference 031ZSZ002065. I purchased it for my Omega Spectre but never got around to using it. The plastic packaging has been opened but the Nato strap has not been used. It’s ideal for your 21mm case watches – Omega Spectre, SeaMaster 300 CoAx, and newer Speedmasters. It’s available for $180 includes shipping CONUS.